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The need of warm water for bathing purposes for household and hospitality scale is very important. All this time those needs are fulfill with hot water heated by furnace and heating using electricity. One alternative to fulfill the hot water needs is to use solar media as energy supply.
Based on the background described the problem to be studied are: Calculating the length of the heating pipe specifications required on the solar water heater out so that the water temperature reaches 450C and Designing also making solar water heater Flat plate collectors are able to produce water temperature 450C.
Based on the test results, that the length of the heating pipe is needed to make a solar water heater with the water exit temperature (Tout) 450C is 1.63 m, made of a type of copper 0.5 inch diameter and some testing of solar water heater able to work as expected with reaches a minimum temperature of the water out 450K (3180 K) where the average temperature - average obtained is 520C (325 0K) and declare technical feasibility tool.